Summary of Contents for Polaroid Spectra/Image One Board
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Repair Manual Spectra/Image One Board September 1996 Americas Business Center Technical Services 201 Burlington Road Bedford MA 01730 TEL: 1.781.386.5309 FAX: 1.781.386.5988...
Table of Contents Page Section 1 - General Description................ Scope of This Addendum ................Spectra Pro/Image Pro/Minolta Pro Operating Differences ......Spectra Pro/Image Pro/Minolta Pro Performance Differences......Spectra Pro/Image Pro/Minolta Pro External Physical Differences ....Section 2 - Disassembly and Reassembly ............Special Tools ....................
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Section 4 Spectra Pro/Image Pro/Minolta Pro Troubleshooting ....Basic Requirements and Guidelines ............... Abbreviations Used in This Section ..............Operating Problems and Typical Causes ............Wire Connections and Test Points ..............Schematic Diagrams ..................List of Illustrations Figure Page 1-1 Spectra Pro/Image Pro/Minolta Pro Electronic Control Panel ..... 1-2 Spectra Pro/Image Pro/Minolta Pro External Physical Differences .....
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3-12 Display for Flash, Autofocus ON , Audio and Exposure Adjust OFF ... 3-13 Display for Flash ON , All Other Functions OFF.......... 3-14 Display for Flash and Autofocus ON, All Other Functions OFF ....3-15 Display for Flash and Autofocus and Audio OFF ........3-16 Removing Top Cover from Camera (See Section 2 for Details) ....
Section 1 - General Description Scope of This Addendum This Service Manual addendum describes only those One Board Spectra Pro/Image Pro/Minolta Pro mechanical parts, electronic circuits, operating modes and service procedures that are different from those of the Spectra camera. Information common to One Board Spectra Pro/Image Pro/Minolta Pro cameras and Spectra cameras is not included in this addendum.
The Spectra Pro/Image Pro/Minolta Pro has the following operating features: • Automatic (sonar) focusing or manual focus distance setting • Manual shutter opening and closing (bulb mode) • Programmable time exposures (1-12- seconds) • Automatic sequential exposures at programmable intervals •...
Pressing MODE repeatedly displays one feature symbol after another; up and down arrows (_and_) turn the feature on or off and set digital displays; A resets the camera to fully automatic operation. When a feature is ON (active), a horizontal bar appears below the corresponding symbol on the LCD panel.
Spectra Pro/Image Pro/Minolta Pro External Physical Differences Figure 1-2 illustrates the physical external differences between Spectra Pro/Image Pro/Minolta Pro cameras and Spectra cameras: • New top cover insert • New S1/S10 button inlay • New front decorative plate (with Spectra Pro/Image Pro/Minolta Pro name) •...
Sectiion 2 - Disassembly and Reassembly Note: This section presents only the One Board Spectra Pro/Image Pro/Minolta Pro camera disassembly and reassembly procedures that are different from those of the Spectra camera. See Spectra Service Manual for all disassembly and reassembly procedures not covered here.
Cautions and Reminders Use proper grounding to protect delicate CMOS circuitry from static discharge damage. Avoid shock from the photoflash capacitor by discharging it with Dump Probe P/N 13119 immediately after removing the Top Cover. Handle flexes (Features Flex, Motor Gear Drive Flex) carefully to avoid crimping or crarcking from sharp bends.
Removing Mid-Cover 1. Remove the top cover as directed in Spectra Service Manual 2. With the special Hinge Pin Insertion/Removal Tool P/N 13384 (Figure 2-2), grasp the hinge pins at the reduced diameter section and pull them toward the center line of the camera to remove them.
Disassembling Mid-Cover 1. To remove the eye cup, use a greenstick to spring out the tabs on the eye wedge retainer (Figure 2-3). Remove the clear plastic eye wedge. The eye cup can now be removed from the eye wedge retainer. 2.
3. To remove the LCD window (Figure 2-4), press it carefully from the outside, bowing the window slightly to free the tab at the end. Lift it out of the mod-cover. Note: When replacing the LCD window, insert the end nearest the viewfinder first. Then bow the window slightly as shown and snap the other end into place.
Removing Ranging Board Note: Be sure to note the position of all wires and wire connectors before you remove any parts, then return them to their original positions upon reassembly. 1. Remove the top, mid and bottom covers. 2. Disengage the S10/S1 assembly from the spring tab. 3.
5. Release connectors J1, J2 and J3 from the ranging board by grasping the wires between your thumb and index finger and rocking the connector from side to side (Figure 2-6). Figure 2-6. Releasing connectors from ranging board 6. Release the white wire (J5) and the brown wire (J4) from the MiniSert self-locking terminals on the ranging board (Figure 2-7).
8. Remove the ranging board (with the LCD board attached). Black/Red Wire to J20 Black Wire to J19 White Wire to J5 Ranging Brown Wire Board to J4 Figure 2-7. Releasing ranging board wire connections...
Replacing Ranging Board 1. Reconnect the following wires to the ranging board (Figure 2-7) on previous page): • White wire to self-locking terminal J5 • Brown wire to self-locking terminal J4 • Black trnsducer lead to terminal J19 (GND) • Black/red lead to terminal J20 2.
Removing LCD Board from Ranging Board 1. Hold the camera vertically, with the front down. 2. Using Square Socket Tool Bit with Handle, P/N 11913, carefully remove the two machine screws (A in Figure 2-9) securing the LCD board to the ranging board. Hold the bracket (D in Figure 2-9) temporarily in place with your finger.
Reconnecting LCD Board to Ranging Board 1. Using your finger, hold the metal retainer (D in Figure 2-10) in place behind the ranging board. 2. Place the zebra connector (B in Figure 2-10) in the slot in the plastic spacer block (C), concave side down.
Removing One Board Strobe/Exposure Module Assembly 1. Remove the top cover, mid cover and bottom covers. 2. Disengage the S10/S1 assembly from the spring tab. 3. Push the S10/S1 assembly tab (Figure 2-11) to free it from the One Board Strobe/Exposure Module Assembly.
4. Disconnect the following wires from the One Board Strobe/Exposure Module Assembly (Figure 2-11): • Black wire from J26 • Red wire from J14 • Black wire from J15 • Orange wire from J16 • Green wire from J17 5. Unsolder the white wire from the trigger coil (Figure 2-11) 6.
10.Use tweezes to remove the photodiode ratainer from the shutter base block (Figure 2-13). 11. Lift out the One Board Strobe/Exposure Module Assembly. Note: To install a One Board Strobe/Exposure Module Assembly, reverse this procedure. Shutter Baseblock Photodiode Retainer Figure 2-13. Removing photodiode retainer...
Section 3 - Testing and Adjustments Spectra Pro/Image Pro/Minolta Pro System Functional Test Purpose The purpose of the functional test is to determine if the camera is operating properly during various phases of simulated operation. In this test the camera is cycled through dark slide, strobe exposures, non-strobe exposures, and end-of-pack.
Test Setup 1. Insert the Film Pack Simulator Adapter #13130 onto the Film Pack Simulator #12467 (Figure 3-1). 2. Plug the Film Pack Simulator with adapter into the power supply (either Power Mate #12531 or Lambda #12429). 3. Plug the power supply into a 110 VAC power source. 4.
Test Procedure 1. Erect the camera and open the film door. 2. Install the film pack simulator with the adapter into the camera. The camera should not cycle. 3. Remove the film pack simulator from the camera. 4. Using the tip of a solder aide, close the camera door latch (Figure 3-2). Push in with soldering aide (greenstick) to close door latch.
5. Install the film pack simulator into the camera again. The camera should go through a dark slide cycle with the following events happening: • The strobe should not fire. • The camera shutter blades should remain closed. • The strobe charging light (red) should come on and then go off. •...
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7. Aim the camera at an object exactly four feet (1.2 meters) away and press the S1/S10 button down half way. The following should happen: • A green circle within a green square will be visible in the viewfinder. • A red figure “4”...
Cover transducer with hand or tape. Do not cover photocell Figure 3-4. Covering transducer to simulate infinity exposure 9. Now, aim the camera at an object within the range of 2 feet (.6 meter) to 15 feet (4.5 meters) and press the S1/S10 button all the way. The following should happen: •...
11. Use the Mode button and either of the UP/DOWN buttons on the control panel to turn the strobe switch off. (The bar under the strobe symbol disappears.) Turn the front of the camera toward you. Cover the photocell with black photographic tape. Insert a soldering aide between the flapper door and the bottom of the shutter (Figure 3-5).
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13.Turn the autofocus feature off and set the distance to infinity as follows: • Press the MODE button until only the autofocus symbol (AF) is visible in the LCD display. • Press the up or down arrow button to remove the bar from beneath the autofocus symbol.
15.Remove the soldering aide from the flapper door and remove the black photographic tape from the photocell. Press the green A button on the control panel to return the camera to its original settings. AF switch in OFF setting Quintic lens moves down part way Figure 3-6.
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17.Press the S1/S10 button all the way down. The following should happen: • The end of pack chimes will sound three times. • The strobe will fire. • Release the S1/S10 button. • The camera will cycle. • The end of pack chimes will sound three times. 18.Look into the viewfinder and press the S1/S10 button half way down.
Star Tester Model 12650-3 Description This Star Tester is an upgrade of the Model 12650-2 (for 600 Series and other cameras). The 12650-3 permits testing Spectra System Cameras for seven different exposure-and timing-related operating characteristics, as well as 600-Series and other cameras.
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Figure 3-7 CONTROL/INDICATOR FUNCTION Stops Error Meter Digital readout for Ambient, Hybrid, Strobe Expos. Tests. DC Current Meter Digital readout of energy req’d to charge Strobe capacitor. ZLS Meter Digital readout of strobe light output in Zonal Lumen seconds. Power Switch AC line voltage On/Off to Tester, Lights when Tester is powered.
Star Tester Setup and Pre-Test Checks Star Tester Setup 1. Install Tester on level surface with clear area around Tester to allow sufficient air flow for cooling. 2. Locate the Tester on a bench or table so that when the Spectra on its Horn is placed on the top of the Tester, the Spectra lens will be exactly 4.5 feet (135 cm) from a graywall target.
Pre-Test Checks 1. Connect the Tester to 115 VAC, 50/60 Hz line. 2. Mount the camera on the Spectra Horn (P/N 13146) and connect the cable from Horn to the receptacle marked “Horn” (key #16 in Figure 3-7) on the right side of theTester. 3.
Order of Spectra Pro/Image Pro/Minolta Pro System Tests Tests on Spectra Pro/Image Pro cameras should be performed as described below. Mandatory Tests Perform the following tests in the order shown on all cameras: 1. Ambient Exposure at 100 C/FS. 2. Strobe Exposure (Graywall). Strobe Exposure Test Reading Cannot be Corrected via IR Exposure Calibration Slide If the Strobe Exposure (Graywall) test reading is out of specification and cannot be...
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3. Perform the Blade Speed Test. • If the Blade Speed is within spec but the Strobe Exposure Test reading remains out of spec, replace the exposure flex and retest. • If the Blade Speed Test reading is not within spec, perform the Blade Speed Adjustment.
Ambient Exposure Test Purpose This Test measures the energy on the film plane during an ambient (visible) light exposure. The Star Tester light integrating sphere provides a constant scene brightness level of 100 candles/ft2. Test Setup 1. Trip the Door Switch on the camera into the down position. 2.
Figure 3-11. Display for flash, autofocus, audio and exposure adjust OFF Note: The display automatically turns off after 30 seconds to conserve power. To turn it on again, press the MODE button or the shutter button. 4. Leave the Photocell on the camera uncovered. 5.
Strobe Exposure (Graywall) Test Purpose This Test measures the resultant energy on the film plane during a 4.5 - foot (135 cm) graywall exposure. Test Setup 1. Trip the Door Switch on the camera into the down position. 2. Place the camera on the Horn on top of the Tester, with the lens 4.5” from the graywall.
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T est Procedure 1. Press Shutter Button fully and note reading on the Stops Error Meter. 2. Repeat the procedure two more times, noting the Stops Error Meter readings. Compare the readings to the Specification 3. If the test readings are not within Spec, adjust IR Strobe Exposure Calibration Slide and retest.
ZLS (Zonal Lumen Seconds) Graywall Test Purpose This Test measures the maximum strobe output. This is done by measuring the energy on the film plane during a 4.5 foot (135 cm) graywall exposure with the shutter blades fully open. Test Setup 1.
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• To turn exposure adjustment OFF: Press the MODE button until the symbol for the Exposure Adjustment function is displayed. Then press the up or down arrow button to remove the bar from beneath the symbol. Press the MODE button once to return to a full display.
Hybrid (ZLS/Blade Speed) Test Purpose This Test measures the resultant energy on the film plane from full strobe output through partially open blades, to determine whether the blades open at the proper speed and the strobe fires at the proper time. If the results of this test are satisfactory, it means that maximum strobe output, blade speed and ranging are all functioning properly.
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Test Procedure 1. Press the Shutter Button fully and note the reading on the ZLS Meter. 2. Repeat the procedure two more times, noting each Meter reading. Compare the readings to the Specification. 3. If the test readings are not within Spec, perform the Hybrid Adjustment procedure and retest.
Blade Speed Test Purpose This Test measures the time between first light detection and 95% blade opening. Test Setup 1. Trip the Door Switch on the camera into the down position 2. Place the camera on the Horn against the Tester window. 3.
Test Procedure 1. Push the Reset button on the Tester, then depress the Shutter Button. Disregard the meter reading (this sets up Tester circuitry). 2. Press the Shutter Button again and watch the Timing Meter carefully. Note the reading that remains constant for two seconds. Compare this reading to the Specification.
Ambient Exposure Calibration Slide Adjustment 1. Remove the Top Cover from the camera (Figure 3-16). Warning: HIGH VOLTAGE EXPOSURE! Up to 320V is present on top flash tube terminal (green wire) and at various other locations on the strobe board. Figure 3-16.
5. When the Ambient Exposure Test reading is within specification, replace the Test Top Cover with the camera’s own Top Cover. Note: If adjusting the Ambient Calibration Slide fails to bring the readings within specification, refer to Steps 4, 5 and 6 of the Ambient Exposure Test procedure.
IR Strobe Exposure Calibration Slide Adjustment 1. Remove the Top Cover from the camera (Figure 3-16). Warning: HIGH VOLTAGE EXPOSURE! Up to 320V is present on top flash tube terminal (green wire) and at various other locations on the strobe board. 2.
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4. Put the Test Top Cover in place and retest the camera. Readjust the IR Strobe Exposure Calibration Slide if necessary, using the Test Top Cover. 5. When the Strobe Exposure Test reading is within specification, replace the Test Top Cover with the camera’s own Top Cover.
Hybrid Adjustment (Opening Blade Spring) 1. Remove the Top Cover from the camera (Figure 3-16). Warning: HIGH VOLTAGE EXPOSURE! Up to 320V is present on top flash tube terminal (green wire) and at various other locations on the strobe board. 2.
Blade Speed Adjustment (Opening Blade Spring) 1. Remove the Top Cover from the camera (Figure 3-16). Warning: HIGH VOLTAGE EXPOSURE! Up to 320V is present on top flash tube terminal (green wire) and at various other locations on the strobe board. 2.
Solenoid 1 Adjustment for Quintic Position If the movable Quintic lens element travels at too high or too low a speed, its final (focused) position may not be correct for the distance measured by the camera’s sonar system. (If the Quintic moves too fast, for example, the Catch Pawl may not be able to stop it at the correct position.) Quintic speed can be adjusted as follows: 1.
Section 4 - Troubleshooting Basic Requirements and Guidelines Spectra Camera Familiarity Before troubleshooting Spectra Pro/Image Pro Cameras, you should have received training in Spectra servicing methods, have read the Spectra Service Manual, and know how to use the Spectra Troubleshooting Charts. Use of Logic Probe Model PRB-50 Follow all safety precautions and know the correct procedure and switch settings for using this Probe, as described on the first page of the Spectra Troubleshooting Charts.
Intermittent Problems Intermittent problems are typically caused by open circuits, resulting from a cold solder joint, contamination (dirt, oil, oxide, etc.) on a connector pad, a loose connection, broken street from a sharp fold in a flex, or a partially seated connector. For intermittent failures involving the Ranging and LCD Boards, Figure 4-3 shows initial “quick check”...
Abbreviations Used in This Section ONEBD One Board Strobe/Exposure Module Features Module Ranging Module Battery End of Pack End of Cycle Film Speed Erect Voltage SOL 1 Solenoid #1 SOL 2 Solenoid #2 STROBE Strobe Board Liquid Crystal Display Module Camera Base Block...
Operating Problems and Typical Causes Typical causes of these operating problems are listed on the following pages: Problem Page No Dark Slide 4 - 6 Incomplete Dark Slide 4 - 6 Blades don’t Open 4 - 7 No S1 Cycle 4 - 7 Sticky S1/S10 4 - 7...
No Dark Slide Typical causes: • Motor flex not seated to wireform switch • Poor connection to LCD module • Red or black wire not seated to strobe (J14-J15) • Erect pin missing • Wireform switch block distorted • Flex not seated to motor •...
Blades don’t Open Typical causes: • Shutter not seated • SOL 1 not adjusted properly • Wire connectors not connected to SOL 1 or SOL 2 • Kicker spring not seated • Solenoid not seated straight • Sticky blades • No SOL 1 drive •...
Sensitive S1 Typical causes: • S1/S10 switch distorted No Motor Drive Typical causes: • Motor connector not plugged into One Board • VBATT wire (white) not connected to RM • No contact from VER to battery (red wire) on strobe board •...
No Self-Timer or Incorrect Self-Timer Cycle Typical causes: • Defective LCD module • Defective FM • Self-Timer LED improperly installed • Defective piezo • Piezo cover missing • Piezo not plugged into FM • Defective RM • Brown and white wires on RM revered or unplugged •...
No End of Pack (EOP) Chime Typical causes: • See No Piezo, Page 4-11 • Deformed wireform switch (EOP not making) • Defective FM • Counter wheel hang up (See Counter Wheel Hangs Up, Page 4-8) Incorrect Blade Speed Typical causes: •...
Strobe doesn’t Fire Typical causes: • S9 contact bent • Defective strobe • Green and orange wires reversed • Flashtube assembly defective • Orange wire not connected to strobe • White trigger wire not soldered or cold soldered • Flashtube not seated •...
Ranging to 8 FT/M Only Typical causes: • Transducer wires not connected to RM • Defective transducer • Defective prism display board • Defective FM • Incorrect shutter assembly IC Timeout Error Typical causes: • White trigger wire caught under features shield •...
Wire Connections and Test Points Figure 4-4 shows the wire connections and test points required for most troubleshooting. Figure 4-4. Wire connections, test points: strobe/exposure module and ranging board...
Schematic Diagrams One Board schematic diagrams are provided on the following pages: Description Figure Page Spectra Pro/Image Pro/Minolta Pro Schematic One Board Strobe/Exposure Module Schematic Ranging Board Schematic Features Module and Display Module Schematic...
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Figure 4-5. Spectra pro/image pro/minolta pro system schematic...
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